5. combustion gases enter an adiabatic gas turbine at 1540°f and 120 psia and leave at 60 psia with a low velocity. treating the combustion gases as air and assuming an isentropic efficiency of 82 percent, determine the work output of the turbine.

How does convection affect our atmosphere? our layers of earth? our oceans?

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?